Home / 6,765.12-10,128.24-5,909.76

Finding the Fourth Proportional to 6,765.12, 10,128.24 and 5,909.76

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Solution

The fourth proportional to 6,765.12, 10,128.24 and 5,909.76 is: 8,847.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,765.12 : 10,128.24 = 5,909.76 : x
  2. Step 2: Convert to fraction form
    6,765.12/10,128.24 = 5,909.76/x
  3. Step 3: Cross multiply
    6,765.12x = 10,128.24 × 5,909.76
  4. Step 4: Simplify right side
    6,765.12x = 59,855,467.62
  5. Step 5: Solve for x
    x = 59,855,467.62/6,765.12
  6. Step 6: Final answer
    x = 8,847.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.